Emergency-Stop push button actuator for Hoffmann machines.
Auto-lock design requires special key to release button once pushed in to stop machine.
This feature allows a supervisor to inspect machine prior to authorizing re-starting.
One key included, additional keys also available - see part number W3990102
Note: This is the red push button actuator only, item does not include required contact element which attaches to the underside of this actuator.See item M30130031 for normally closed contact element.